[Bug 3917] New: Add chroot support to sftp-server

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Fri Feb 6 21:36:15 AEDT 2026


https://bugzilla.mindrot.org/show_bug.cgi?id=3917

            Bug ID: 3917
           Summary: Add chroot support to sftp-server
           Product: Portable OpenSSH
           Version: -current
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: sftp-server
          Assignee: unassigned-bugs at mindrot.org
          Reporter: eloi.benoist-vanderbeken at synacktiv.com

Created attachment 3938
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3938&action=edit
patch to add chroot support to sftp-server

I would like to add chroot support to sftp-server.

I am well aware that I could use ChrootDirectory with internal-sftp but
that doesn't suit my needs (I need to configure the sftp server in a
way that is incompatible with internal-sftp).

I'm launching my patched sftp-server from an unprivileged namespace so
running as root is not a problem for me but we could add chroot-like
`--userspec=USER:GROUP` and `--groups=G_LIST` options if needed.

I have created a very simple patch that works for me, I'm sure it's not
ready to be merged but I'll be happy to help get there :)

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